238617900972208 has 20 divisors (see below), whose sum is σ = 462329780384160. Its totient is φ = 119306989905344.

The previous prime is 238617900972203. The next prime is 238617900972271. The reversal of 238617900972208 is 802279009716832.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 238617900972208.

It is not an unprimeable number, because it can be changed into a prime (238617900972203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121531960 + ... + 123479767.

It is an arithmetic number, because the mean of its divisors is an integer number (23116489019208).

Almost surely, 2^{238617900972208} is an apocalyptic number.

It is an amenable number.

238617900972208 is a deficient number, since it is larger than the sum of its proper divisors (223711879411952).

238617900972208 is a wasteful number, since it uses less digits than its factorization.

238617900972208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245072604 (or 245072598 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 64.

The spelling of 238617900972208 in words is "two hundred thirty-eight trillion, six hundred seventeen billion, nine hundred million, nine hundred seventy-two thousand, two hundred eight".